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PureAire Monitoring Systems Air Check Advantage Acrylonitrile Monitor Instruction Manual

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Air Check Advantage
Acrylonitrile Monitor
Instruction Manual
PureAire Monitoring Systems, Inc.
557 Capital Dr.
Lake Zurich, IL. 60047
Phone: 847-726-6000
Fax: 847-726-6051
Toll-Free: 888-788-8050
E-mail: pureaire@dls.net
Web: Pureairemonitoring.com

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Summary of Contents for PureAire Monitoring Systems Air Check Advantage Acrylonitrile Monitor

  • Page 1 Air Check Advantage Acrylonitrile Monitor Instruction Manual PureAire Monitoring Systems, Inc. 557 Capital Dr. Lake Zurich, IL. 60047 Phone: 847-726-6000 Fax: 847-726-6051 Toll-Free: 888-788-8050 E-mail: pureaire@dls.net Web: Pureairemonitoring.com...
  • Page 2 That’s just one way PureAire takes that extra step to ensure your complete satisfaction. Thank you again for investing in PureAire Monitoring Systems for your monitoring needs and I’m proud to welcome you to our family of valued and satisfied customers.
  • Page 3 PureAire Monitoring Systems, Inc.
  • Page 4 PureAire Monitoring Systems, Inc. Read Before Operating This gas monitoring system has been designed to provide long-term reliable performance. We recommend the following basic precautions while installing, operating and maintaining this device.  Read this “Guide to Operation and Installation” carefully. Installation, maintenance, calibration and testing should be carried out by qualified personnel only.

  • Page 5: Table Of Contents

    PureAire Monitoring Systems, Inc. Table of Contents 1: Introduction ..................5 1.1 Component Identification……………………………………….6 2: Specifications ..................11 2.1 Performance Specifications............11 2.2 Gas Detection System ..............11 2.3 Signal Outputs ................12 2.4 Electrical Requirements ............. 12 2.5 Physical Characteristics ............. 12 2.6 Air Check Acrylonitrile Default Settings ........

  • Page 6: 1: Introduction

    PureAire Monitoring Systems, Inc. 1: Introduction The Air Check Acrylonitrile Monitor is a compact extractive gas sampling system designed for the continuous detection and measurement of toxic gas leaks. It is capable of sampling over distances of up to 100 feet (33 meters).

  • Page 7: Component Identification

    PureAire Monitoring Systems, Inc. 1.1 Component Identification 1.1.1 Overall System Composition The Air Check Acrylonitrile Monitor may be integrated into the overall hazardous gas monitoring system. As a result, it may be remotely located for the monitoring of process areas and other environments where access to the instrument for maintenance or service may be restricted.
  • Page 8 PureAire Monitoring Systems, Inc. 1.1.2 Front View Control Panel Local Digital Display Flowmeter Front Cover Joystick Alarm & Cover fastening Fault (LED’s) screws (on each corner) AL 2 , AL 1 & Fault 1. Local Digital Display — During normal operation, displays the name and concentration of the target gas.
  • Page 9 PureAire Monitoring Systems, Inc. Main Power Connector 1.1.3 Internal View Pyrolizer Assembly Control Electronics / Readout Pyro & Pump Drive PCB Flow Meter Acrylonitrile sensor cell Flow chamber Sample Pump Mounting Feet Strain relief Exhaust and Inlet 1. Main Power Connector — Connector for 24VDC power input. See section 3: Installation for more information.
  • Page 10 PureAire Monitoring Systems, Inc. 1. Power Analog 1.2.5 Transmitter Interior Terminal Block Common mA output + 24VDC Common 1. Power Analog Terminal Block — This terminal block is where the 24VDC power and 4-20 mA analog output connection is made.
  • Page 11 PureAire Monitoring Systems, Inc. + 24VDC Pin 1 Common Pin 2 Pyrolizer Filament connector Pyrolizer Drive Board Main 24VDC Power Connector (Do Not Remove Jumper) Sample Pump Main power connection (To be terminated by customer) Pump and Pyrolizer Drive Assembly Status LED’s...

  • Page 12: 2: Specifications

    PureAire Monitoring Systems, Inc. 2: Specifications  NOTE: Due to our commitment to continual product improvement, all specifications are subject to change without notice. 2.1 Performance Specifications Models: Air Check Acrylonitrile Monitor Sensor Type: Renewable electrochemical cell. Field rechargeable. Response Time: Within 60 seconds to T90.

  • Page 13: Signal Outputs

    PureAire Monitoring Systems, Inc. 2.3 Signal Outputs Local Display: Digital display calibrated for Acrylonitrile. The range is stated on the serial number and can be accessed via the joystick on the front panel. Analog Output: DC 4-20 mA Relay Output: Dual level user selectable alarm relays and one fault relay Rated, 2amps @ 30VDC;...

  • Page 14: Air Check Acrylonitrile Default Settings

    PureAire Monitoring Systems, Inc. 2.6 AirCheck Acrylonitrile Default Factory Settings The Air Check Monitor is shipped with factory defaults for the alarm relay settings. The following are Acrylonitrile the factory defaults: Menu Function Factory Default Menu Defined Alarm Thresholds Alarm 1 = 1.0ppm At what level do you want to alarm? Alarm 2 = 5.0ppm...

  • Page 15: 3: Installation

    PureAire Monitoring Systems, Inc. 3: Installation 3.1 Site Requirements The Air Check Acrylonitrile monitoring system should be mounted in an area free of vibration and electrical noise or interference. If possible, avoid areas with continuous high temperatures or relative humidity.

  • Page 16: Wiring

    PureAire Monitoring Systems, Inc. 3.4 Wiring 3.4.1 24 VDC Power Connect the 24 VDC power cable to the terminal block located on the inside of the instrument. The terminal connections are as follows: (Pin 6) +24V, (Pin 5) Common, and (Pin 5) shield. A three- wire shielded cable (3-conductor, 18 AWG stranded shielded) General Cable #E2203S.30.86 or...

  • Page 17: Initial Startup

    PureAire Monitoring Systems, Inc. 3.4.2 Alarm Relays The Air Check monitor incorporates two, gas concentration alarm and one system fault relay. These relays may be wired for normally open (N.O.) or normally closed (N.C.) operation and are rated as follows: Rated, 2amps @ 30VDC;...

  • Page 18: 4: Air Check Methyl Bromide Programming

    PureAire Monitoring Systems, Inc. 4: Air Check Monitor Programming The Air Check Acrylonitrile Monitor is supplied with user selectable settings to adjust the alarm settings, 4 and 20mA output and minor sensor adjustments. The settings are arranged in menus that are accessed by moving the joystick.

  • Page 19: Program Flowchart

    PureAire Monitoring Systems, Inc. 4.3 Program Flowchart Enter PassCode OK PassCode OK Set 4-20mA Set 4mA Set 20mA NOTE: All numerical values shown are only examples and are not Factory Force loop Defaults Not Available Set Formats Format Normal Relay 1...
  • Page 20 PureAire Monitoring Systems, Inc. Set Alarm Set Alarm 1 Normal Threshold PassCode OK Polarity Invert Set Alarm 2 Normal Invert Set Audio Not available Alarm Set Latching Set Latching Nonlatch NOTE: All numerical Latching values shown are only Set Latching...
  • Page 21 PureAire Monitoring Systems, Inc. Alarm Delay Zero 0.5ppm Suppression 1.0 PPM Set Alarm Set Relay 1 PassCode OK Thresholds Set Relay 2 2.0 PPM Set Audio Not Available Set Alarm 0.0 ppm Set Alarm 1 Hysterisis Set Alarm 2 0.0 ppm...
  • Page 22 PureAire Monitoring Systems, Inc. Enable Auto Not Available Zero Cal Start Zero Not Available Set Module Zero Enable Zero Not Available Tracker PassCode OK Manage Enter New User Passwords Password Re-enter New User Password Enabled Enable User Password Disabled...

  • Page 23: Entering The Password

    PureAire Monitoring Systems, Inc. 4.4 Entering the Password The Air Check Acrylonitrile monitor is supplied with a factory set password to prevent unauthorized The Password is 557. access to the menus. The following explains how to enter the password. 1. Push the joystick once to the right. Enter Password will scroll on the first line of the digital display. The second line will still display the current oxygen level.

  • Page 24: Changing The User Password

    PureAire Monitoring Systems, Inc. 6. Push the joystick in the center to enter the password. If you entered it correctly the display will scroll Password OK..Password OK…… NOTE: If an incorrect password has been entered, the display will indicate Password Failed. Push the joystick to the left to access the monitoring mode.
  • Page 25 PureAire Monitoring Systems, Inc. 4. Push the joystick up or down to enter the first digit. The display is an alphanumeric display and toggles from A through Z followed by 0 to 9. The character to be entered will flash.
  • Page 26 PureAire Monitoring Systems, Inc. 10. Push the joystick again to the right to select the second entry. Push the joystick up or down to select the second digit. The character being entered will flash and the first character entered will remain lit.

  • Page 27: Entering The Menus

    PureAire Monitoring Systems, Inc. 4.6 Entering the Menus The Air Check Acrylonitrile monitor is supplied with main menus with sub menus to adjust mA outputs, alarm relay settings, sensor adjustments and zero suppression. 4.6.1 Set 4-20mA loop .Set 4-20mA loop..
  • Page 28 PureAire Monitoring Systems, Inc. Push the joystick down to access the next sub menu; Set 20mA Span will scroll..Set 20mA Span… This is the menu at which to adjust the 20mA output being sent from the Air Check Monitor.
  • Page 29 PureAire Monitoring Systems, Inc. …Set Formats… 0.0ppm This menu will permit the setting of the two alarm relays and the fault relay settings from normally de-energized state, Normal, to normally energized state, Inverted. From this main menu, pushing the joystick to the right will select the sub menu and the digital display will scroll the following: ..Format Relay 1…...
  • Page 30 PureAire Monitoring Systems, Inc. To change this value, push the joystick right to display the relay state. The display will Indicate NORMAL. Pushing the joystick down will change the relay state from NORMAL to INVERT. Press ENTER to accept the value.
  • Page 31 PureAire Monitoring Systems, Inc. After entering the relay state the display will default back to the Set Formats menu. The display will scroll the following: ..Set Formats... 20.9 4.6.3 Set Alarm Threshold Polarity Alarm Threshold Polarity determines if an alarm concentration is set above or below a threshold value. For example, if an alarm of 2.0ppm is selected, the Alarm Threshold Polarity must be set to Normal for the...
  • Page 32 PureAire Monitoring Systems, Inc. Push the joystick down to access the next sub menu; Set Alarm 2 Polarity will scroll on the display. This is the menu at which to adjust the second level alarm polarity state on the Air Check Acrylonitrile Monitor.
  • Page 33 PureAire Monitoring Systems, Inc. 4.6.4 Set Latching This is the menu at which to adjust the relay alarm state for the two gas alarm relays and the individual instrument fault relay. The selection permits setting the relays to a latching or non-latching state. In a latching state, the relay will remain activated until the user manually selects the Enter Key.
  • Page 34 PureAire Monitoring Systems, Inc. ..Set Latching Relay 1… 0.0ppm Push the joystick down to select the next relay to be adjusted. The display will scroll the following, Set Latching Relay 2. ..Set Latching Relay 2… 0.0ppm This is the menu at which to adjust the second level alarm relay state on the Air Check Monitor.
  • Page 35 PureAire Monitoring Systems, Inc. 4.6.5 Set Alarm Delay Push the joystick down to access the next main menu, Alarm Delay. The display will scroll the following: …Alarm Delay… 0.0ppm This is the amount of time an alarm level concentration of oxygen must be present before the instrument’s gas concentration alarm(s) will be activated.
  • Page 36 PureAire Monitoring Systems, Inc. To change this value, push the joystick right to display the Zero Suppression screen. The display will indicate a value between 0 and 100%. Pushing the joystick up increases the value and pushing the joystick down decreases the value. Press ENTER to accept the value.
  • Page 37 PureAire Monitoring Systems, Inc. Push the joystick down to access the next sub menu; Set Relay 2 Alarm Threshold, will scroll on the digital display. ..Set Relay 2 Alarm Threshold… 0.0ppm This is the gas concentration at which the instrument’s second level alarm will be activated. To change the displayed value, push the joystick to the right to display the second level alarm setting.

  • Page 38: 5: Maintenance & Calibration

    PureAire Monitoring Systems, Inc. 5: Maintenance & Calibration Only qualified personnel should perform maintenance and calibration 5.1 Routine Maintenance Schedule Continuous gas detection systems depended upon to measure and detect hazardous gas leaks in the workplace requires periodic maintenance to ensure proper operation. The frequency with which this routine maintenance is required depends on the environment, since temperature, humidity, gas concentrations, and dust all affect system operation.

  • Page 39: Sensor Cell Removal And Installation

    PureAire Monitoring Systems, Inc. 5.3 Sensor Cell Removal and Installation 5.3.1 Sensor Removal 1. Remove the sensor by gently rocking the sensor side-to-side and simultaneously pulling it up from the flow chamber. 2. Unplug the sensor cable from the sensor cell by pulling straight up.

  • Page 40: Electrolyte Replacement

    PureAire Monitoring Systems, Inc. 5.4 Electrolyte Replacement (For Renewable Acrylonitrile sensor)  CAUTION: Always wear protective gloves and safety glasses when replacing sensor electrolyte. Be sure to adhere to your facility’s chemical handling guidelines and procedures. 1. Remove the sensor as outlined in section 5.3.
  • Page 41 PureAire Monitoring Systems, Inc. 5. Wipe the sensing electrode and the surrounding area with a dry paper tissue. PAPER TISSUE SENSING ELECTRODE 6. Place a new silicone sheet (if used) and O-ring on the sensor. Make sure that the area is dry of electrolyte.
  • Page 42 PureAire Monitoring Systems, Inc. 8. Place the retainer ring over the membrane and then place the box nut over the retainer ring. Turn clockwise until hand tight; continue tightening until the box nut can no longer be moved by hand.
  • Page 43 PureAire Monitoring Systems, Inc. 10. Insert the pressure compensation plug into the port. PRESSURE COMPENSATION PORT 11. Reinstall the sensor as outlined in section 6.1.2. NOTE: When storing the sensor cell never store the sensor cell horizontal with the Pressure Compensation Plug positioned down or store the sensor cell upside down.

  • Page 44: System Calibration

    PureAire Monitoring Systems, Inc. 5.5 System Calibration The Air Check Acrylonitrile Monitor requires periodic calibration with the appropriate standard gas. Calibration should be performed whenever:  Six months has passed without calibration  The sensor cell electrolyte is replaced 5.4.1 Gas Generation and Calibrating Kits For generating a calibrating gas, the following PureAire Gas Generation Kits are recommended.
  • Page 45 PureAire Monitoring Systems, Inc. This is the menu at which to adjust the true zero reading on the Acrylonitrile monitor. The selection permits setting system zero to a new or freshly recharged sensor cell. This procedure must be performed before challenging the monitor to a calibrated span gas. To perform this function enter the Sensor Adjust Menu by pushing the joystick to the right.
  • Page 46 PureAire Monitoring Systems, Inc. 5.4.4 Gas Prepration  CAUTION: Be sure to observe all safety guidelines when generating and using calibration gases.  IMPORTANT: Due to the different flow rates of the methyl bromide monitor and the regulator of the span gas, do not connect the span gas directly to the monitor.
  • Page 47 PureAire Monitoring Systems, Inc. Return the system to the monitoring mode by pushing the joystick to the left until the “AN ” appears on the top line of the display. Reattach the front cover to the sampling system. Note: The remaining span gas and collected waste gas should be properly exhausted.

  • Page 48: 6: Appendix

    PureAire Monitoring Systems, Inc. 6: Appendix Location of 4ea. Front Cover Fastening screws The Air Check monitor has 4 ea. Front Cover captive fastening screws on each corner of the front cover. Use a Phillips head screwdriver to unfasten the screws to remove the front cover.
  • Page 49 PureAire Monitoring Systems, Inc.

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